New York, N.Y.
From the School of Medicine, New York University.
Received for publication June 30, 2009; accepted July 20, 2009.
Disclosure:The author has no financial interest to declare in relation to the content of this Discussion or of the associated article.
Charles H. Thorne, M.D., 812 Park Avenue, New York, N.Y. 10021, firstname.lastname@example.org